Ask her teacher and friends for help preparing for the paper.
Answer:
Dynamic stretching
The type of stretching that Diane is doing is the dynamic stretching.
Basically, dynamic stretching is characterized by controlled, slow, calculated, and smooth movements. It is usually done in 10 up to 12 repetitions. Dynamic stretching effectively improves the body's mobility and flexibility. Some of the people who prefer dynamic stretching are athletes, physical therapists, coaches, and trainers.